Operation Oklahoma Hills was a clear and search operation during the Vietnam War mounted by the 1st Marine Division and the Army of the Republic of Vietnam (ARVN) 51st Regiment from 31 March to 29 May 1969.
Marines search for enemy supply caches during Operation Oklahoma Hills
Marine in action
Marines, led by a Vietnamese Kit Carson Scout
3/26 Marines move through Happy Valley
The 1st Marine Division is a Marine division of the United States Marine Corps headquartered at Marine Corps Base Camp Pendleton, California. It is the ground combat element of the I Marine Expeditionary Force.
A Marine of the 1st Marine Regiment on Guadalcanal.
Marines of 1st Marine Division fighting on Okinawa, 1945.
Marines of 1st Marine Division at the Battle of Chosin Reservoir.
3/3 Marines observe an airstrike during Operation Harvest Moon